Sub and grand total mechanism



July 19, 1938. w. w. LASKER SUB AND GRAND TOTAL MECHANISM 1923 '7Sheets-Sheet 1 Filed Dec. 18

NVENTOR M ATTORNEYS.

July 19, 1938. w. w. LASKER SUB AND GRAND TOTAL MECHANISM Filed De. 18,1923 7 Sheets-Sheet 2 INVENTOR WILLIAM W. LASKER BY ATTORNEY July 19,1938. w. w. LASKER SU-BAND GRAND TOTAL MECHANISM Filed Dec. 18, 1925 7Sheets-Sheet 3 INVENTOR W1 am. WLasker 4% ATTORNEYS July 19, 1938.

w. w. LASKER 2;124,176

SUB AND GRAND TOTAL MECHANISM Filed Dec. 18, 1923 7 Sheets-Sheet 4 lINVENTOR j W Jim U! 1-4/0 4 BY alumnwa 4M0 ATTORNEYS July 19, 1938. w.w. LASKER SUB AND GRAND TOTAL MECHANISM Filed Dec. 18, 1923 7Sheets-Sheet 5 7 W M W uku BY W WM K ATTORNEYS July 19, 1938.

W. W. LASKER SUB AND GRAND TOTAL MECHANISM '7 Sheets-Sheet 6 Filed Dea.18, 1923 INVENTOR W Jim. W Lulu,

BY (2 I ATTORNEYS July 19, 1938. w w, LASKER SUB AND GRAND TOTAL MECHANISM Filed Dec. 18, 1923 7 Sheets-Sheet '7 IINVENTOR U DU; 0w W Lasla (FAu Wm M ATTORNEYS Patented July 1 9, 1938 UNITED, STATES PATENT OFFICE2,124,170 sun Ami cam TOTAL mzcmmsm Application December 18, 1923,Serial No. 681,333

8 Claims.

This invention relates to accounting machines, and particularly to thetotal-taking mechanism thereof. According to the present invention, Iprovide an accounting machine having two independent sets ofaccumulating wheels, both of which act simultaneously to accumulateitems, but neither of which is aflected when a total accumulated by theother set is being printed. By such an arrangement, I may, for example,use

one set of accumulating wheels to print sub-totals and the other set toprint grand totals; or, if desired, I may use one set to printsub-totals and the other set to print sub-sub-totals.

For the purposes of illustration, the accompanyingdrawings show myinvention applied to a tabulating machine of the type described inPowers Patent No. 1,245,502, issued on November 6, 1917, and includingsome of the modifications described in Powers Patent No. 1,236,481,issued on August 14, 1917, and No. 1,376,555, issued on May 3, 1921.

In these drawings, Fig. 1 shows a portion of a machine embodying myinvention, with certain parts not having to do with the present invention removed; Fig. 1A shows the card-operated total latch forconditioning one set of accumulating wheels for total-taking; Fig. 2 isa detailed view of a portion of the control mechanism for theaccumulating wheels; Fig. 3 is a plan view of the parts shown in Fig. 2;Figs. 4 and 5 are detailed views showing the movement of some of theparts during the operations; Fig. 6 is an enlarged sectional view of oneof the accumulating mechanisms which I utilize; Fig. 7 is a plan view ofthe parts shown in Fig. 6; Fig. 8 is a view correspending with Fig. 6but showing the parts in a different position; Figs. 9 and 10 aredetailed viewsto illustrate the carrying or transfer mechanism; Fig. 11is a perspective view of one of the accumulating wheels; Fig. 12 is asection on line l2-l2 of Fig. 6; Fig. 13 is a detailed view of two ofthe accumulating wheels and their associated parts illustrating thetransfer or carrying mechanism; Fig. 14 is a diagrammatic view of thecontrol of one of the accumulating wheels illustrating the connectionbetween this control and the control mechanism shown in Fig. 2 and Fig.15 shows the mechanism for rockingthe main shaft in the head of themachine.

Referring to Fig. 1A, the machine is provided with the usual cardmagazine (not shown) which holds the cards to be tabulated and with cardfeeding means (not shown) for feeding the cards one at a time from themagazine to the sensing chamber which is formed by an upper plate 8| anda lower plate 82 spaced from the upper plate. Disposed below the lowerplate 82 is a pin box 83 which is adapted to be verticallyreciprocate-:1 by suitable actuating means mounted on the main driveshaft 84. The pin box carries a column of 5 sensing pins 85 for each ofthe columns on a rec- 0rd card. Disposed above the upper plate 8| of thesensing chamber are columns of interponents 86, there being as many ofthese columns as there are columns of sensing pins, and the interponents10 in each column being aligned with the sensing pins in thecorresponding column. The head of the machine is provided with aplurality of accumulating units, each of which is controlled by aplurality of columns of stops 3a. Each column 15 of stops contains tenstops corresponding to the zero digit and to the digits from 1 through9. Associated with each column of stops-3a is a toothed sector 3(Fig. 1) and operatively associated with each sector is a type bar 2. Atranslator basket 81 20 is disposed between the interponents 86 and thestops 8a, and carried by the basket is a plurality of translating wires88. Each column of interponents is associated with one of the columns ofstops by means of the translating wires, each of 25 which has its lowerend in registry with an interponent 86 and its upper end in registrywith a stop 30. When fed into the sensing chamber, each card is arrestedin sensing position by the usual card stops and after the card has beenthus 30 positioned, the pin box is raised, thereby causing the sensingpins to sense the perforations in the card. When a perforationrepresenting a particular digit is sensed from a particular column onthe card, the sensing pin that senses the perforation raises thecorresponding interponent' 86, which, in turn, actuates thecorrespondingtranslating wire 88 to lift the associated stop 3a. Each stop whenraised is positioned in the path of a shoulder 317 on the associatedtoothed sector, with the result that the sectorand associated type barare arrested by the stop in a position to permit the sensed digit to beprinted.

Each'toothed sector is normally held in its re- 45 tracted position byan associated aero shutter or zero stop plate, similar to the stop plate38 shown in Powers Patent No. 1,236,481. A tooth 30 on each shutternormally engages a shoulder 3b on the associated toothed sector, therebyholding 50 the sector retracted. Upon the elevation of any one of thestops 3a, except the zero stop, the zero shutter is tilted and the tooth3c is removed from the path of the shoulder 3b on the correspondingtoothed sector, thereby allowing the sector to be 55 stop. 1

advanced until the shoulder strikes the raised The set of frontaccumulating wheels -4 is loosely mounted on a rod having its oppositeends supported in a slot in each of the two crank arms 5 (see Fig. 14).A bar 6 is provided for moving the accumulating wheels 4 out of and intoengagement with the racks 3. This bar is pivoted to one of the crankarms 5 and is provided with two notches 1 and 8. Associated with the bar6 is a crank 9 which is fixed to a rod 9a supported by arms on a casting(not shown). The crank 9 carries an upper pin H which is adapted tocooperate with notch 8 when bar 6 is in raised position, and a lower pinI which is adapted to cooperate with notch 1 when bar 6 is in its lowerposition. Crank 9 is rocked back and forth by the contact of cam sectorI2 against a roller I3 attached to an arm fixed to the rod 9a. Bar 6 isnormally held in raised position by a spring I4, but can be drawn downto its lower position by an arm I6 fixed to a main total shaft I1 andconnected to the bar 6 by a spring I5. The cam sector I2 is fixed t0shaft 48 which is rocked forward and backward during each cycle of themachine. It is rocked by the usual means employed in the Powerstabulator and may, for example, be rocked by mechanism disclosed inPowers Patent No. 1,245,502, previously referred to. and illustratedherein by Fig. 15. Referring to this figure, an arm I20 is loose on theshaft 48 and another arm I2I is fixed to this shaft. The free end of thearm I2I is provided with forks I22 and a rod which extends through anopening in the arm I20 is supported by the forks. Two compressionsprings are disposed on this rod and each spring has its opposite endscompressed between a fork and one edge of the arm I20, thereby providinga yielding connection between the arm I20 and the shaft 48. A bell-crankI23 is fulcrumed on a stud I24 fixed to the'main frame of the machine,and has on one arm a roller I25 and on the other arm an adjustable headI26. cam I21 fixed to the main drive shaft 84 'and the adjustable headI26 is connected to the arm I20 by a link I 28 which may be adjusted inlength by means of a turn buckle I29. It will be evident from thisdescription that the cam I21 causes the shaft48 to rock forward andbackward during each cycle of the machine, thereby rocking the camsector I2.

Under normal tabulating conditions, the accumulating wheels 4 are inengagement with the racks 3 at the beginning of each item recordingcycle, as is shown in Fig. 1, the cam sector I2 is in its extremerearward position and not in its extreme forward position as it is shownin Fig. 14 and bar 6 is raised and is in its extreme forward positionand not in its extreme rearward position as it is shown iii Fig. 14.When the bar 6 is raised and in its extreme forward position, the pin II rests in notch 8 of the bar. The sectors 3 and the type bar 2 arearranged to be reciprocated by the cam sector I2 and the type bars 2 andsectors 3 start their forward stroke shortly after the cam sector I2starts its forward stroke and start their backward stroke shortly afterthe cam sector starts its backward stroke. At the beginning of theforward stroke of the cam sector I2, the roller I3 cooperates with thecam sector to rotate the crank 9 in a clockwise direction, whereupon thepin II moves the bar 6 into its extreme rearward position, as it isshown in Fig. 14, thereby throwing the accumulating stroke.

The roller I25 cooperates with a slot wheels 4 out of mesh with theracks 3 before they start their forward stroke. The accumulating wheels4 remain out of mesh with the racks 3 during their forward stroke. Theforward stroke of each rack 3, as previously stated, is limited by araised stop 3a in the associated column or by the tooth 3c of theassociated zero shutter. As the stop raised in each column correspondsto the digit sensed from a column on a card, the extent of the forwardstroke taken by each sector 3 is determined by the digit sensed from aparticular column of a card. As each type bar 2 is spositioned inaccordance with the extent of the f rward stroke of the associatedsector 3, the forward stroke of the sectors brings types, representingthe item sensed from the card, into printing position. At the end of theforward stroke of the cam sector I 2, the item represented by thesetting of the type bars 2 is printed in a manner disclosed in PowersPatent No. 1,245,502. After item printing has been effected, the camsector I2 begins its backward stroke. At the beginning of the backwardstroke of the cam sec tor, the roller I3 cooperates with the cam sectorto rotate the crank 9 in a counter-clockwise direction, whereupon thepin II moves the bar 6 into its extreme forward position, therebythrowing the accumulating wheels 4 into mesh with the racks 3 beforethey start their backward During the remainder of the backward stroke ofthe cam sector I2, the accumulating wheels 4 remain in mesh with theracks 3, and the previously printed item is entered into the wheels.

Total taking from the accumulating wheels 4 in any accumulating unit iseffected under the joint control of a space card and a total card. Thespace card serves, as is well known in the art, to align those racks 3which have been positioned one tooth space behind the other racks 3during the operation of effecting a tens carry to their'associatedaccumulating wheels 4. This operation of aligning each rack 3 will beexplained in more detail at a more convenient point in the description.The total card serves to rock the main total shaft I1. This shaft isrocked by a pull rod or total link 51 (see Figs. 1 and connected to anarm 58 fixed to the shaft and mechanism controlled by a total card isprovided for pulling the link 51' whenever a total is to be taken. Thismechanism is similar to that shown in my U. S. Patent No. 1,376,555.Disposed in' the pin box 83 is a total pin 89 which has a collar 90disposed above the lower plate of the pin box, between which collar andthe lower plate is positioned a spring 9|, by means of which the totalpin is biased upwardly. Near the upper end of the pin 89 there isprovided a collar 92 of slightly less diameter than the openings 93 and94 formed in the plates 8| and -82. The lower end of the pin 89 isprovided with an elongated slot 95 through which the rod '96 extends.Associated with the total pin 89 is a reciprocating bar 91 which is bentin a U-shape about the pin 89 to form arms 91a in which the end of rod96 is supported. The reciprocatory bar 91 is ful- 'crumed on theupwardly extending arm 98 of the bell-crank lever 99, to which the endof the rod 96 is also connected, and the bell-crank lever is looselymounted on the stud I00 secured in a bracket fastened to the main frameof the machine. The bell-crank lever 99 also has a laterally extendingarm IOI, the free end of which is provided with a cam roller I02 toengage the cam 75 groove I03 of the'box cam I04 mounted on the maindrive shaft 04.

A shaft I secured to the main frame is provided on which is looselymounted the casting I06 which has an upwardly extending arm I01 providedwith a lateral lug I08 thereon to cooperate with the lateral lug I09formed on the rearwardly extending end of the reciprocating bar 91. Thecasting I06 also has a laterally extending arm IIO provided with ananchoring stop III, and a link connecting arm H2, to the free end ofwhich is pivotally connected the link 51. Fixed to the shaft I05 is thebearing bracket II3 extending laterally and downwardly therefrom, to thefree end of which is pivotally connected the latching lever II4 having alatching hook portion H5 at its upper end and a pin II6 extendinglaterally from its downwardly extending arm Ill. The hook portion H5 isresiliently strained toward the stop III of the casting I06 by means ofthe spring IIO connected between its upwardly extending portion and thebracket H3.

The periphery of the cam I04 is provided with a cut-out lug II9 forcooperating with the pin II 6 of the latching lever H4.

The operation of the arrangement is substantially as follows: The cardsto be analyzed for taking a record have no perforations in alignmentwith the openings 93 and 94. Stop cards are provided with perforationsin alignment with the openings 93 and 94, and of sufficient size topermit the passage. therethrough of the collar 92 and total-taking cardsare provided with perforations just sufficiently large to permit passagetherethrough of the upper end of the pin 09 but to obstruct the upwardpassage of the collar 92. By this arrangement, whenever a record card ispassed through the machine, the pin 89 will be obstructed in its upwardmovement by its upper end coming into contact with the card itself andthereby the stop I08, relative to the stop I09, will be so positionedthat upon the actuation of the reciprocating 'bar 91, by the operationof the bell-crank lever 99, the casting I06 will not be actuated andconsequently the main total-taking shaft I! will be unaffected in itsoperation. On the other hand, when a stop card passes through themachine, or the card supply is exhausted and no card is disposed betweenthe plates 8I and 82, the free passage of the collar 92 through theopenings 93 and 94 will position the lug I08 below the lug I09, andagain, upon the actuation of the bell-crank lever 99, the casting I06will remain idle.

However, when a total card is passed through the machine and the upwardmovement of the total pin 89 is obstructed by its collar 92 coming intocontact with the total card, the lug I08 will be disposed in the path ofmovement of the lug I09 so that, upon the actuation of the reciprocatingbar 91 by the bell-crank lever 99, the casting I06 will be rocked,thereby rocking its lower arm so that its stop III will be latched bythe portion H5 and, furthermore, rocking the main total shaft I! by theconnection of the lever II2 to the link 51. The co-action of the latchII5 with the stop III will anchor the main total shaft I! intotal-taking position until the lug II9 strikes the pin II6, therebyreleasing the hook portion II5 from the stop III, and permitting themain total shaft I! to be returned to initial position by the springsI4. The return of the shaft I I will also restore the casting I06 toidle position.

When the main total shaft is rocked, the arm I6 is rocked into theposition shown in full lines in Fig. 14, thereby tensioning the springI5 and drawing the bar 6 into its lower position. At the beginning of acycle, as previously stated, the bar 6 is in its extreme forwardposition and the pin II is positioned in the notch 3 of the bar 6 andthe pin I0 is behind the notch 'I in the bar. Hence, when the bar 6 ismoved into its lower position at the beginning of a total cycle. the pinI0 does not enter the notch 1 until the end of the forward stroke of thecam sector I2 with the result that the bar 6 is held in its extremeforward position during the forward stroke of the cam sector I2, therebyconditioning theaccumulating wheels 4 to remain in engagement with theracks 3 during their forward stroke. During the total cycle, the totalcard, being blank except for the total hole, prevents the sensing pins05 from raising any of the stops 3a. By reference to Powers Patent No.1,245,502, it will be understood that, when the accumulating wheels 4remain in engagement with the associated racks 3 during their forwardstroke and none of the stops 3a are raised, the forward stroke of theracks is limited by the amount standing in the accumulating wheels, and,accordingly a total is taken from them during the forward stroke of theracks. Upon the start of the backward stroke of the cam sector I2, thebar 6 is moved to its extreme rearward position, which is the positionshown in Fig. 14, and the accumulating wheels 4 are held disengaged fromthe racks 3 during the backward stroke of the cam sector. It is thusevident that the following operations occur whenever a total cycle isinitiated by the rocking of the main total shaft IT. The sectors 3 takea forward stroke under control of the accumulating wheels 4 until thetype bars 2 are positioned to print a total of the amounts entered intothe accumulators, and the accumulators are cleared at the end of theforward stroke of the racks, and at the end of the forward stroke of camsectors I2 the total is printed. The sectors 3 then take a backwardstroke until the type bars are restored to their original position, butthe accumulators remain out of engagement with the sectors during theirbackward stroke so that the accumulators are retained in their clearedcondition.

As previously stated, the casting I06, after being rocked, isautomatically latched in this position by total latch II4 which retainsit in this position for approximately the entire duration of the totalcycle. As a result, the total link'5I is held down for the same periodand the main total shaft I1 accordingly holds the bar 6 in its lowerposition long enough to permit the above described total-takingoperation from the accumulating wheels 4. When the total link 51 isreleased, the bar 6 is restored to its raised position. As the bar 6 isin its extreme rearward position at the time it is raised, the pin IIdoes not cooperate with the notch 8 on the first half of the nextaccumulating cycle and the bar is left in the position mentioned duringthat half cycle. The accumulating wheels 4 thus remain disengaged fromthe racks 3 during this half cycle, as they normally are during thefirst half of an accumulating cycle. At the end of the first half cycle,however, the pin II enters the notch 0, and the bar 6 is conditioned tomove the accumulating wheels 4 into engagement with the racks 3 duringthe second half cycle. It is, therefore,

evident that the raising of the bar 6 at the end of the total cycle,conditions it to effect ordinary 4 accumulating operations on theaccumulating wheels 4.

It is necessary to move the zero shutters from the path of the sectors 3before a total may be taken from the accumulating wheels 4. Accordingly,at the farther side of the machine there is provided an arm H, fixed tothe main total shaft I! (see Fig. 1), which corresponds to the arm 83shown in Fig. l of the Powers Patent No. 1,236,481. the arm through arod Ha, rocks another shaft I2 (see Figs. 1 and 2) which corresponds tothe shaft 59 in the patent referred to. Loosely mounted on the shaft 12is cam 69 (see Figs. 1-3, inclusive). This cam is similar inconstruction and operation to the cam 58 disclosed in the patentreferred to. Fixed on the shaft 12 and adjacent to the cam 69 is an arm73 which is provided with a pin cooperating with the associated cam.When the rocking of the main shaft rocks the shaft 12, the arm 13oscillates cam 69, thereby causing it to tilt the zero shutters out ofthe path of the sectors 3 in the manner "disclosed in Powers Patent No.1,236,481.

Referring to Figs. 1. 6 and 8, the accumulating wheels of the second setare designated by the numeral 20. Each accumulating wheel 20 is adaptedto cooperate with a rack 2| connected with a bar 22, which in turn isconnected to a type bar 2.

The movement of accumulating wheels 20 into and out of engagement withtheir racks 2| is controlled by a pair of cam levers 35 fixed t shaft36. The accumulating wheels 20 are loosely mounted on a rod which hasits opposite ends supported in a slot in each ofthe cam levers 35.

Fixed to shaft 36 is an arm 40 which in turn is connected with a bar 4|.The latter connection is shown as formed by apin and slot, with spring42 holding the parts in normal position. This provides a yieldingengagement to take up the strain in case an accumulating wheel 20 shouldget out of alignment with its rack 2|. The bar 4| is operated insubstantially the same way as the bar 6 associated with the set of frontaccumulating Wheels 4. A crank 43 (see Fig. 4) carries a pin 45 adaptedto cooperate with a notch 49 in the bar 4| and a pin 44 adapted tocooperate with the free end of a latch 59 which is pivoted on the bar4|. The free end of the latch is spring tensioned downwardly by a springand a stop 50' is provided on the bar 4| to limit the movement of thelatch in the direction in which it is urged by the spring. This springalso serves to hold the bar 4| in raised position. Both the crank 43 andan arm carrying a roller 46 are fixed to the same rod. The roller 46cooperates with a cam sector 41 which is fixed to shaft 48 to which thecam sectors l2 are also fixed. Under normal tabulating conditions, thebar 4| is in its upper position and pin 45 cooperates with notch 49.Accordingly, on the forward stroke of cam sector 41, the bar 4| is movedrearwardly, thereby rocking arm 40 counter-clockwise and causing camlevers 35 to disengage the accumulating wheels 20 from the racks 2|during the forward stroke of the racks. On the rearward stroke of camsector 41, the bar 4| is pulled forward, thereby engaging theaccumulating wheels 20 with the racks 2| during the backward stroke ofthe racks. A pivoted lever 40a (see Fig. 1) which is spring biaseddownwardly, is provided on its lower edge with two notches whichcooperate with a stud on arm 40 to hold the accumulating wheels 20positively in or When the main total shaft'is rocked.

out of engagement with their racks 2| until their position with relationto the racks is changed by a movement of the bar 4|. During normaltabulating operations, the accumulating wheels 20 are thus positivelydisengaged from the racks 2| during the forward stroke of the racks andpositively engaged therewith during their backward stroke. When theaccumulating wheels 20 are out of engagement with racks 2|, they areheld against improper movement by a rod 39-( see Figs. 1 and 8) which issupported by a pair of pivot arms 38.

When the accumulating wheels are moved intoengagement with the racks,they are moved out of engagement with the rod (as may be seen from Fig.6) and they are thus free to rotate.

It has been pointed out in Powers Patent No. 1,245,502, at page 8, lines16-19, inclusive, that at the end of each cycle, all of the typebars 2are aligned with their zero" types one tooth space anterior to printingposition. On both its forward and back strokes, therefore, each type bar2 moves a distance greater by one tooth space than the movement it isdesired to transmit to the corresponding rack 2| To avoid transmittingthis extra movement to the racks 2 I, each bar 22 is given a lost motionof one tooth space both before and after it moves the associated rack2|. The desired lost motion is provided in the following manner.corresponding bar 22 by means of a pin 23 on the rack which slides in aslot 24 provided in the bar and the rack is coupled to the bar by aspring 25 tensioned between armson both members (see Figs. 1, 6 and 8).

The backward stroke of each rack 2| is normally limited by a pin 26which is carried on an arm 21 and engages a shoulder 28 formedby acutout in the rack. When the pin 26 strikes the shoulder 28 of a rack,the rack is arrested in its zero position with the pin 23 one toothspace anterior to the rear edge of the slot 24 in the associated bar 22.Let it be assumed that the racks 2| are in their Each rack is slidablyconnected to the zero positions before the type bars 2 take theirreached the rear end of slots 24, as shown in Fig.

8, and the subsequent movement of the type bars 2 is transmitted to theracks 2| until the racks reach their zero position on their backwardstroke, at which time they are normally arrested by the pins 26. As thetype bars 2 pass from their zero position to their extreme rearwardposition, the

bars 22 take an additional step of one tooth space beyond the zeroposition of the racks, so that the pin 23 on each rack is one toothspace anterior to the rear end of slot.24 and the bars 22 are thusprovided with a lost motion of one tooth space. It is evident from theforegoing description that the connection between the type bars 2 andracks 2 is such that only that part of the forward movement of the typebars 2 between their zero position and their ultimate forward positionand only that part of the backward movement of the type bars betweentheir ultimate forward position and their zero position are transmittedto the racks 2 The tens carry from accumulating wheels 20 of lowerorders to those of higher orders is effected independently of the tenscarry from accumulating wheels 4 of lower orders to those of higherorders. The following mechanism is provided for effecting this carry. Itis to be noted (see Fig. 13) that there is a rack 2| for eachdenominational order and that each rack has associated with it an arm21. The pin 26 on any arm 21, however, does not control the movement ofthe rack 2| with which the arm 21' is associ ated, but controls insteadthe movement of the rack 2| of the next higher denominational order. Forexample, the movement of the rack associated with the accumulating wheelregistering tens" is controlled by the pin 26 carried on the arm 21which lies under the accumulating wheel registering units. During anaccumulating operation, as previously stated, the accumulating wheels 20engage the racks 2 during their backward stroke. Accordingly, when theaccumulator registering units passes through its zero position duringthe backward stroke of the racks, the cam stop 29 (Figs. 9 and 11)presses against the cam stop 30 and depresses the arm 21 associated withthe units" rack. Pivoted to each arm 21 is a bell crank lever 3| havinga shoulder 32. The vertical arm of each lever 3| is normally heldagainst a stop '34, mounted on the frame, by a spring 33, which alsoserves to hold the associated arm 21 in raised position. The normalposition of the bell-crank lever 3| is shown in Fig. 6. When arm 21associated with the units rack is depressed by the action of cam stops29 and 30, shoulder 32 on the lever 3| associated with the depressed arm21 engages stop 34 and the arm 21 is held down, as may be seen from Fig.10. When this occurs the backward movement of the rack 2| associatedwith the accumulating wheel registering tens is not limited by theengagement of pin 26 with shoulder 28, but the spring 25 moves the rackrearwardly until the pin 23 engages the rear end of slot 24. This extramovement of one tooth space thus effects a tens carry from theaccumulating wheel 20 registering unit to the accumulating wheelregistering tens". In a similar manner, a tens carry would be effectedfrom any other accumulating wheel 20 to the accumulating wheel of thenext higher denominational order.

This operation is illustrated in Figs. 9 and 10. In Fig. 9, theaccumulating wheel 20 (which may be the one to register units) is shownin the nine position, and as the zero tooth.is broken away, cam stop 29is shown just engaging the cam surface of cam stop 30. Fig. 10 shows theposition of the parts after the units accumulating wheel has beenrotated 3 spaces on the next adding operation. Cam stop 29 has nowpassed out of engagement with cam stop 30 but arm 21 is held depressed,with the result that the rack 2| of the accumulating wheel 2|] which registers tens has moved a full tooth space be yond normal therebyeffecting a tens carry.

It is thus evident that the tensflcarry on the accumulating wheels 20 inany accumulating unit is effected independently of the tens carry on theaccumulating wheels 4 in the same unit, and that the carry on theaccumulating wheels 20 is effected at the end of the rearward stroke ofthe racks 2| much as the carry on the accumulating wheels 4 is effectedat the end of the rearward stroke of the sectors 3.

It is necessary to provide means effective at the beginning of each itemrecording cycle to raise any arms 21 which have been lowered during atens carrying operation in the preceding item recording cycle. As thecam levers 35 are actuated at the beginning of each item recording cycleto lift the accumulating wheels 2|! out of mesh with the racks 2| beforethe racks begin their forward stroke, such means may be placed undercontrol of the cam levers. Accordingly, between their upper ends, levers35 carry a bar 35 to which is attached a plate 31. Whenever theaccumulating wheels 20 are disengaged from the racks 2| at the beginningof an item recording cycle, the plate 31 strikes the levers 3| havingtheir shoulders 32 latched by stops 34 and releases the correspondingarms 21 which have previously been depressed to effect a tens carryingoperation. This operation is shown in Fig. 8.

In order to take a total from the rear accumulating wheels 20, a spacecard and a stop card are placed at the end of the group of cards whichis to be tabulated just prior to the taking of a total from the wheels20.

The reason for the use of a space card before a total card and before astop card will now be explained. In the preceding description, it hasbeen explained that the racks 2| of each denominational order arearranged to effect a tens" carry to the accumulating wheels 20 of thenext higher order, and that in effecting this carry, the racks 2| aremoved beyond their zero position to a position one tooth space behindnormal. At the same time, the sectors 3 to which a tens carry has beeneffected are one tooth position in the rear of normal. It is, therefore,necessary to align the sectors 3 in their zero or normal position beforea total is taken from the front accumulating wheels 4, and to align theracks 3| at their zero position before a total is taken from theaccumulating wheels 20. To effect this alignment a spacing cycle must beinterpolated between the last item recording cycle and the total cycle.This spacing cycle is interpolated by inserting a spacing card after thelast record card in any group of which a total is to be taken. As thebar 4| is left in its normal raised position during the spacing cycle,the cam levers 35 disengage the accumulating wheels 20 from the racks 2|during the first half of the spacing cycle,

- and the plate 31 releases any of the arms 21 which have been depressedduring the last item recording cycle. At the end of the spacing cycle,therefore, the machine is conditioned to permit the proper total to betaken from either the front accumulating wheels 4 or the rearaccumulating wheels 20.

As the only reason for using the space cards is to align the front andrear racks at their zero position prior to the total-taking cycle, it isevident that when successive totals are taken from the frontaccumulating wheels 4 and the rear accumulating wheels 20, a space card,a total card and a stop card may be placed in the order mentioned at theend of the group of cards which is to be tabulated Just prior to thetaking of a total from the two sets of wheels. In this case, the spacecard preceding the stop card may be omitted since the rear set of racks2| is aligned at zero position by the space card preceding the totalcard.

After the space card preceding the stop card has aligned the front andrear sets of racks at their zero position, the space card is fed out ofthe sensing chamber and the stop card is fed into sensing position inthe chamber. The stop card, as previously stated, is a blank card exceptfor the special stop hole which cooperates with the total pin; 89. Whenthe pin box '83 is raised, the collar 92 of the total pin 89 passesthrough the special hole in the stop card, thereby rocking the bar 91 tobring the lug I09 below the lug I08. When the bell-crank lever 99 isrocked by the cam I04, the lug Hi9 does not strike the lug I08, and,accordingly, the main t'otal shaft ii of the present invention is notrocked, but instead the bar 91 is moved freely to the left. As the baris connected to the pin 89 by a rod 96 extending through the pin, thebar 91 is reciprocated with respect to the total pin 89. When the bar 91is thus positioned and moved toward the right, it aligns with rod 6111.(see Fig. 9 of Powers Patent No. 1,245,502) and hence moves rod 6m,which causes the motor circuit of the tabulator to be opened and themachine stopped, as will be seen upon reference to page 4, lines 79-124,inclusive, of the patent. The machine is stopped by the stop card at apoint in the machine cycle before the sector 41- begins its forwardstroke.

After the machine has been stopped, the operator actuates the handle 52to condition the rear accumulating wheels 20 for total-taking. Fig. 2shows the machine set to print a total accumulated on accumulatingwheels 20, with the parts in the position they occupy before the forwardstroke of the sector 41. The operation of the handle 52 rocks thevertical arm of a bellcrank lever 53 which is loosely mounted on anauxiliary total shaft l8. To hold the bell-crank lever in its rockedposition there is provided a latch 59 which is adapted to engage a pin60 on the lever 53 (see Fig. 2) and to be held in engagement with thepin by a spring (see Figs. 2 and 4). The bar 4| is connected by a spring55 to a bar 54 (see Figs. 2, 4 and 5) and this bar is connected by pinand slot connections to an arm on the lever 53 and to the horizontal armof a bell-crank lever 55 which is fixed on the main total shaft When thelever 53 is rocked, the bar 54 is depressed and the spring 55 istensioned,

, thus moving bar 4| irito its lower position against the action ofspring 5|. The pin and slot connection between the bar 54 and the arm ofbell crank lever 56 prevents the rocking of the main total shaft I! bythe depression of the bar 54. It may also be observed at this point thatthe pin and slot connection between the bar 54 and the lever 53 preventsthe rocking of the latter when the main total shaft I1 is rocked. Aslong as the lever 53 is held rocked by the latch 59, the bar 4| will beretained in its lower position. After the machine has been stopped andcard handle 52 operated, the. operator actuates the start handle torestart the tabulator. This handle is shown as 617 in Fig. 3 of PowersPatent No. L,245,502, and its function, as described in that patent, isto close the motor circuit to restart the machine. When the machine isstarted the stopped card is still in the sensing chamber of the machine,and as it is a blank card, except for the special stop hole, the sensingpins 85 are held depressed by the card and hence none of the stops 3a israised. Accordingly, the racks 3 are free to move forward.

As the bar 4| is now in its lower-position, the pin 45 cannot cooperatewith the notch 49 and the pin 44 cannot cooperate with the latch 59during the forward stroke of the cam sector 41. This is clearly shown inFig. 2. As the bar 4| is in its extreme forward position at thebeginning of the total cycle, the accumulating wheels 20 are inengagement with the racks 2|, and as the forward stroke of the cam 41does not affect the bar, the bar remainsin its extreme forward positionduring the forward stroke of the cam sector 41 with the result that theaccumulating wheels 20 are retained in engagement with the racks 2|during their forward stroke.

As the racks 2| take their forward stroke, each accumulating wheel 20revolves until its cam stop 29 \strikes the corresponding cam stop 30 onarm 21, thereby arresting the forward movement of the associated rackand settingthe associated type bar 2. The forward stroke of the racks 2|thus sets the type bars 2 in the position of the accumulated total andthe accumulating wheels 20 are cleared. During the backward stroke ofthe racks, the accumulating wheels 29 are held out of engagement withtheir racks 2| by the cooperation between the pin 44 and the latch 50.This is effected in the following manner. At the end of the forwardstroke of the cam sector 41, the pin 44 has been moved from its positionbeneath the latch 50, as shown in Fig. 2, into the position anterior tothe front edge of the latch 50, as shown in Fig. 4. When the pin 44reaches the position shown in Fig. 4, the spring 5| rocks the latch,thus preventing the pin 44 from returning to its neutral position at theend of the forward stroke of the cam sector. Just before the racks 2|begin their rearward movement, the pin 44 cooperates with the latch 59to move the bar 4| to its extreme rearward position, thereby rocking thearm 4|! in a counter-clockwise direction to disengage the accumulatingwheels 29. The accumulating wheels 20 are, therefore, held out ofengagement with the racks 2| during the backward stroke of the racks,and are thus retained in their cleared condition.

At the end of the total stroke, it is necessary to disengage the latch59 from the pin 60 on lever 53 to permit the bar 4| to be returned tothe normal raised position and thus recondition the rear accumulatingwheels 20 for further accumulat-' ing operations. To this end, a block62 is pivoted on cam sector 41 and is spring biased in a coun-'ter-clockwise direction. The movement of the block in acounter-clockwise direction is limited by a pin 54 on the block whichengages the edge of cam sector 41, but the movement of the block in aclockwise direction is unlimited. As the block 62 is free to move in aclockwise direction against the tension of the spring 63, it merelymoves over the rear end of the latch 59 during the forward stroke of camsector 41, and does not affect the latch. But near the end of the backstroke of the cam sector 41, the block 62 engages the latch, and as itsmovement in a counter-clockwise direction is limited by the stop 64, itrocks the latch 59 against the action of spring 9|. The latch thusreleases, allowing the spring 5| to lift the bar 4| to its normal raisedposition and to restore the lever 53 to its unoperated position. As thebar is in its extreme rearward position, the pin 45 will not cooperatewith the notch 49 on the first half cycle of the next accumulating cycleand the bar will be left in the position mentioned during that halfcycle. The accumulating wheels 20 will thus remain disengaged from theracks 2| during this half cycle, as they normally are during the firsthalf of an accumulating cycle. At the end of the first half cycle,however, the pin 45 will enter the notch 49, and the bar 4| will beconditioned to move the accumulating wheels 20 into engagement with theracks 2| during the second half cycle. It is, therefore evident that theraising of the bar 4| at the end of the total cycle conditions it toeffect ordinary accumulating operations on the rear accumulating wheels20.

As previously stated, the zero shutters must be tilted before thesectors 3 and racks 2| can be reciprocated during the total cycle, andfor this purpose the zero shutters are also placed under control of thelever 53. when the lever 53 is rocked, alink 58 rocks a transverse shaft14 in a clockwise direction through an arm 15 fixed on the shaft andconnected to the link. Fixed to the shaft 14 is an arm 15 having a pin11 which cooperates with a rod 18 connected to the cam 59 (see Figs. 1and 2). Accordingly, when the shaft 14 is rocked, the arm 15 is raisedto rotate the cam 69, which as previously stated, is loosely mounted onshaft 12. In this way, the zero shutters are tilted out of the path ofthe sectors 3 when a total is to be taken from accumulating wheels 20.

It is also necessary to provide means for preventing the accumulatingwheels 4 from engaging their racks 3 during a total taking cycle inwhich a total is taken from the rear accumulating wheelsflll. This iseifected by an arm 55 which is fixed to the auxiliary total shaft It.When the handle 52 is operated,a pin 51 on lever 53 rocks the arm 55slightly to bring the outer end of the arm into the path of a pin 65 onthe cam sector 41. It is to be noted that the pin 55 will not controlarm 65 when the machine is set for ordinary tabulation. When the arm 55is thus rocked, the auxiliary total shaft i8 is given a slight rotarymovement to bring the arm. I! on the shaft l8 into engagement with thearm l5a fixed to the total shaft l1, as is shown in broken lines in Fig.14. The main total shaft i1, therefore, remains unrocked during thegreater part of the forward stroke of the cam sector 41, and,accordingly, the bar 8 is retained in its raised position with the pinIi positioned in notch 5. At the beginning of the forward stroke of camsector i2, the bar 3 is, therefore, moved to its extreme rearwardposition and the accumulating wheels 4 are disengaged from the sectors 3for the duration of the forward stroke of the sectors in the same manneras in the first half of an ordinary accumulating cycle. At the end ofthe forward stroke of the cam sector- 41, the pin it strikes the arm 65,rocking the auxiliary total shaft l8 and moving arm I! and lBa into theposition shown in full lines in Fig. 14 to rock the main total shaft i1.As previously explained. the rocking of arm lia into this position movesthe bar 5 into its lower position. But on the backward stroke of the camsectors II, the bar 5 is restored to its upper position by therestoration of the bar 55 to its normal position. At this time, however,the pin II is out of alignment with the notch 8 and does not cooperatewith this notch and consequently bar 6 is retained in its extremerearward position to which it was moved during the first half of thecycle. The accumulating wheels 4 in each unit are thus held out ofengagement with the sectors 3 during both the forward and backwardstrokes of the sectors when a total is taken from the accumulatingwheels 20. It is evident from the preceding descrlption that the pin IIwill enter the notch 8 near the end of the first half of the nextaccumulating cycle, so that the raising of the bar 5 conditions it toeffect further accumulation on the accumulating wheels 4.

It is also necessary to provide means to prevent the taking of totalsfrom the rear accumulating wheels 20 when a total is taken from thefront accumulating wheels 4. This means consists of the bell-crank lever55 which is fixed to the main total shaft i1 and is provided with a pin10. In the normal position of the lever 55, the vertical arm of thelever is positioned in front of the bar 4|, as is clearly shown inFig. 1. But when the main total shaft I1 is rocked to initiate totaltaking from the accumulating wheels 4, the vertical arm of the lever 55is moved in a clockwise direction and the pin 10 is positioned beneaththe bar 4|, as is shown in Fig. 5. The rocking of the total shaft l1causes the horizontal arm of lever 55 to pull bar 54 downwardly, therebytensioning spring 55, but the pin 10 prevents the bar from being movedinto its lower position during the first half of the total taking cycle.During the first half of the total cycle, the bar 4| is thus retainedinits raised position and is moved rear'wardly by the pin 45 todisengage the accumulating wheels 20 fromtheir racks 2| in the samemanner as in the first half of an ordinary accumulating cycle. At theend of this half of the cycle, the bar is moved clear of the pin 10 anddrops to its lower position. The free end of bar 4| is cut on a diagonalto provide a cam surface which acts in conjunction with the pin 10. Ifthe bar 4| should get out of its proper alignment, this cam surfaceinsures that the pin 13 is positioned beneath the bar 4| when the maintotal shaft i1 is rocked. It is to be observed that at the end of thefirst half of the total cycle, the pin 44 is positioned in front of thefree edge of the latch 50 and at a distance from the free edge of thelatch which is equal to the amount of rearward movement given to bar 4|by the upper pin 45 during the first half cycle. It is thus evident thatthe pin 44 does not engage the 'free edge of the latch 50 during thesecond half cycle and that the bar 4| is retained in its rearwardposition during this half cycle and holds the accumulating wheels 20 outof engagement with the racks 2| during the second half as well as duringthe first half of the total cycle. When total link 51rocks back to itsnormal position, as shown in dotted lines in Fig. 5, the tension onspring 55 is released, and bar 4| moves to its raised position, ready tohave notch 49 picked up by pin 45 during the next forward stroke of camsector 41.

Fig. 1 shows the position of the parts under normal tabulatingconditions just before the forward stroke of cam sector i2 and camsector 41. Under these conditions, the bar 5 and the bar 4| are held inraised position. Accordingly, pin remains in notch 8 in the bar 6 andpin 45 remains in notch 49 in the bar 4|, with the result that theaccumulating wheels 4 are held out been pressed in so that latch 59 hasengaged pin 50. Bar 54 has been forced down, increasing the tension ofspring 55, thereby drawing bar 4| into its lower position, but it may benoted that pin 44 on lever 43 does not engage the free end of Cam arm 55has been partly de 75 latch 50.

pressed by the pin 61 on cam lever 53, bringing this arm intothe path ofpin 66. Shaft I8 has also been rocked slightly, bringing cam l9 (Fig.14) into the position shown in dot and dash lines, and rod 68 has actedthrough the previously described cam'mechanism to tilt the zero shuttersfrom the path of sectors 3. As shaft 48 is rocked, swinging the camsector l2 and the cam sector 41 forward, the cam sector l2 causes theaccumulating wheels 4 to move out of engagement with sector 3, but,since pin 44 does not cooperate with latch 50 and pin 45 is disengagedfrom notch 49, cam sector 41' does not move bar 4| from its extremeforward position, and accumulating wheels 20 remain in engagement withracks 2|. During the forward stroke of cam l2 and cam 41, therefore, thetype bars 2 are-moved to positions representing the total of the amountsaccumulated on the accumulating wheels 20. As cam sector 41 continuesits forward movement, block 62 snaps past the end of latch 59 withoutmoving the latch, but pin 66 strikes arm 65, thereby further rockingshaft l8 and swinging cam l9 into the position shown in full lines inFig. 14. This draws bar 6 down into the position shown in that figure,where neither notch I nor 8 in each bar engages its corresponding pin.

On the return stroke of the cam sector l2 and the cam sector 41, bar 6is allowed to rise, but before notch 8 engages pin II, the cam sector l2swings this pin forward beyond the notch. During the return stroke ofthe cam sector I2, therefore, the pin does not cooperate with the notch8, and the bar 6 remains in its extreme rearward position to which itwas moved during the first half of the cycle. Accordingly, theaccumulating wheels 4 remain disengaged from the racks 3 during thereturn stroke, as well as during the forward stroke, of the type sectors2. At the end of the total stroke, the bar 6 is raised and is in itsextreme rearward position. On the next item recording cycle, the pin IIwill, therefore, engage the notch 8, thus conditioning the accumulatingwheels 4 for further accumulation. The backward movement of cam sector41 causes pin 44 on lever 43 to engage the free end of latch 50, thusmoving the bar 4| to its extreme rearward position and liftingaccumulating wheels 20 clear of racks 2|. After this movement of bar 4|is completed, block 62 releases latch 59, and allows bell-crank lever 53to return to normal position whereupon bar 4| moves to its raisedposition. Thus, at the end of the total stroke, the bar 4| is raised andin its extreme rearward position. On the next item recording cycle, thepin 45 will, therefore, engage notch 49, thus conditioning theaccumulating wheels 20 for further accumulation.

Fig. 5 shows the operation of the parts when a total is being printedthat has been accumulated by accumulating wheels 4. As previouslydescribed, such total is caused to be printed when shaft I1 is rockedinto the position shown in full lines in Fig. 5 by the action of totallink 51. During the first half of the total cycle, pin I0 mounted in theupper end of the vertical arm of lever 56 passes under the bar 4| andholds it up. Accordingly, as cam sector 41 makes its forward stroke, bar4| is pushed back, lifting accumulating wheels 20 from racks 2|. Thismovement is started by the action of pin 45 in'notch 49, but as themovement goes on, bar 4| movesrearwardly so that its underside clearspin 10, permitting the bar to drop to its lower position. On the returnstroke of cam sector 41, bar 4| is not moved from its extreme rearwardposition, and the accumulating wheels 20 remain out of engagement withthe racks 2|, but when total link 51 is released, and rocks back to itsnormal position as shown in dotted lines in Fig. 5, the tension onspring 55 is released, and bar 4| moves to its raised position, ready tohave notch 49 picked up by pin 45 during the next forward stroke of camsector 41.

Upon the rocking of main total shaft I1, arm l6 tensions spring l5, thuslowering bar 6, and rod II a is actuated to remove the zero shutters ineach of the accumulating units, thereby conditioning the accumulatingwheels 4 to have a total extracted from them on the forward stroke ofcam sectors l2.

It is evident from the foregoing description that the present inventionprovides means whereby a total can be taken from a set of frontaccumulating wheels in response to the automatic initiation of a totalcycle and can be taken from a rear set of accumulating wheels inresponse to a manual operation under control of the operator.

What I claim is:

1. In a tabulator, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by the corresponding totalizer, separate totalizerrocking mechanisms for engaging and disengaging the totalizers and thesets of racks, each of said mechanisms including a member forcontrolling the operation. thereof, means normally causing each controlmember to condition the totalizer rocking mechanism controlled therebyto effect accumulating engagement between the corresponding totalizerand the set of racks engageable thereby, a mechanism adapted when heldset during a cycle to cause the control members to so vary the operationof the totalizer rocking mechanisms that total-taking engagement betweenthe first totalizer and the corresponding set of racks is effected andtotal-taking or accumulating engagement between the second totalizer andthe corresponding set of racks is prevented, and record card controlledmeans for setting said settable mechanism and for holding it set for theduration of a cycle.

2. In a tabulator, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by the corresponding totalizer, separate totalizerrocking mechanisms for engaging and disengaging the totalizers and thesets of racks, each of said mechanisms including a member forcontrolling the operation thereof, means normally causing each controlmember to condition the totalizer rocking mechanism controlled therebyto effect accumulating engagement between the corresponding totalizerand the set of racks engageable thereby, a mechanism adapted when heldset to cause the control members to so vary the operation .of thetotalizer rocking mechanisms that total-taking engagement between thefirst totalizer and the corresponding set of racks is efiected andtotal-taking or accumulating engagement between the second totalizer andthe corresponding set of racks is prevented, record card controlledmeans for setting said mechanism, anchoring means for holding saidmechanism in set position, and means for causing said anchoring means torelease said mechanism.

3. In a tabulator, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by the corresponding totalizer, separate totalizerrocking mechanisms for engaging and disengaging the totalizers and theset of racks, each of said mechanisms including a member for controllingthe operation thereof, biasing springs each normally retaining one ofthe control members in a position to cause the totalizer rockingmechanism controlled thereby to effect accumulating engagement betweenthe corresponding totalizer and the set of racks engageable thereby, amechanism adapted when held set to cause the control members to so varythe operation of the totalizer rocking mechanisms that total-takingengagement between the first totalizer and the corresponding set ofracks is effected and total-taking or accumulating engagement betweenthe second totalizer and the corresponding set of racks is prevented,record card controlled means for setting said mechanism, anchoring meansfor holding said mechanism in set position, and means for causing saidanchoring means to release said mechanism to permit it to be returned bysaid biasing .springs into normal position.

4. In a tabulator, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by the corresponding totalizer, separate totalizerrocking mechanisms for engaging and disengaging the totalizers and thesets of racks, each of said mechanisms including a member forcontrolling the operation thereof, means normally causing each controlmember to condition the totalizer rocking mechanism controlled therebyto effect accumulating engagement between the corresponding totalizerand the set of racks engageable thereby, a total shaft, record cardcontrolled means for rocking said shaft and for holding it rocked forthe duration of a machine cycle, and means controlled by said totalshaft and rendered efiective when the shaft is held rocked to cause thecontrol members to so vary the operation of the totalizer rockingmechanisms that total-taking engagement between the first totalizer andthe corresponding set of racks is effected and total-taking oraccumulating engagement between the second totalizer and thecorresponding set of racks is prevented.

5. In a tabulator, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by the corresponding totalizer, separate totalizerrocking mechanisms for engaging and disengaging the totalizers and thesets of racks, each of said mechanisms including a control member forcontrolling the operation thereof, biasing springs each normallyretaining one of the control members in a position to cause thetotalizer rocking mechanism controlled thereby to effect accumulatingengagement between the corresponding totalizer and the set of racksengageable thereby, a total shaft, a mechanism controlled by the totalshaft and rendered effective when said shaft is held rocked to cause thecontrol members to so vary the operation of the totalizer rockingmechanisms that total-taking engagement between the first totalizer andthe corresponding set of racks is eilected and totaltaking oraccumulating engagement between the second totalizer and thecorresponding set of racks is prevented, record card controlled meansfor rocking said total shaft, anchoring means for holding said totalshaft in rocked position, and

means for releasing said anchoring means to permit said biasing springsto return said shaft to unrocked position.

6. In a tabulator, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by the corresponding totalizer, a cyclicallyoscillatable shaft, a pair of cams carried by said shaft, separatemechanisms each actuated by one of said cams for engaging anddisengaging the totalizers and the sets of racks. each cam actuatedmechanism including a member for controlling the operation thereof,means normally causing each control member to condition the cam actuatedmechanism controlled thereby to efiect accumulating engagement betweenthe corresponding totalizer and the set of racks engageable thereby, amechanism adapted when held set during a cycle to cause the controlmembers to so vary the operation of the cam actuated mechanisms thattotal-taking engagement between the first totalizer and thecorresponding set of racks is effected and total-taking or accumulatingengagement between the second totalizer and the corresponding set ofracks is prevented, and record card controlled means for setting saidsettable mechanism and for holding it set for the duration of a cycle.

7. In a taubular, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by the corresponding totalizer, a, cyclicallyoscillatable shaft, a pair of cams carried by said shaft, separatemechanisms each actuated by one of said cams for engaging anddisengaging the totalizers and the sets of racks, each cam actuatedmechanism including a member for controlling the operation thereof,biasing springs each normally retaining one of the control members in aposition to eiflect accumulating engagement between the correspondingtotalizer and the set of racks engageable thereby, a total shaft, recordcard controlled means for rocking said shaft, anchoring means forholding said shaft rocked, means controlled bysaid total shaft andrendered effective when said shaft is held rocked to cause the controlmembers to so vary the operation of the cam actuated means thattotaltaking engagement between the first totalizer and the correspondingset of racks is effected and total-taking or accumulating engagementbetween the second totalizer and the corresponding set of racks isprevented, and means for causing said anchoring means to release saidtotal shaft to permit said control members and total shaft to bereturned to unrocked position by said biasing springs.

8. In a tabulator, the combination of first and second totalizers, a setof record card controlled racks for each totalizer, each set of racksbeing engageable by'the corresponding totalizer,. separate totalizerrocking mechanisms for engaging and disengaging the totalizers and thesets of racks, each of said mechanisms including a member forcontrolling the operation thereof, means normally causing each controlmember to condition the totalizer rocking mechanism controlled therebyto effect accumulating engagement between the corresponding totalizerand the set of racks engageable thereby, a mechanism adapted whenmanuallyset to cause the control members to condition the totalizerrocking mechanisms to eifect total-taking engagement between the secondtotalizer and its set of racks and to prevent total-taking oraccumulating engagement between the first totalizer and its set ofracks, an anchoring means for holding said mechanism in set position,record card controlled means for stopping said machine to permit settingof said mechanism. means for restarting said machine to permit operationof the totalizer rocking mechanisms under control of said manuallysettable mechanism, and means for causing the anchoring means to releasesaid mechanism at the end of the cycle following the setting of themanually settable mechanism;

WILLIAM W. LASKER.

